22994681 has 4 divisors (see below), whose sum is σ = 23115264. Its totient is φ = 22874100.

The previous prime is 22994677. The next prime is 22994683. The reversal of 22994681 is 18649922.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22994681 - 2² = 22994677 is a prime.

It is a super-2 number, since 2×22994681² = 1057510708583522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22994683) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60005 + ... + 60386.

It is an arithmetic number, because the mean of its divisors is an integer number (5778816).

Almost surely, 2^22994681 is an apocalyptic number.

It is an amenable number.

22994681 is a deficient number, since it is larger than the sum of its proper divisors (120583).

22994681 is a wasteful number, since it uses less digits than its factorization.

22994681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120582.

The product of its digits is 62208, while the sum is 41.

The square root of 22994681 is about 4795.2769471637. The cubic root of 22994681 is about 284.3647737900.

The spelling of 22994681 in words is "twenty-two million, nine hundred ninety-four thousand, six hundred eighty-one".